Group
constructor(applicationID: String, groupID: String, fromUser: String? = null, fromUserNickname: String? = null, fromUserAvatarURL: String? = null, toUser: String? = null, addTime: Long = 0, requestMsg: String? = null, handledMsg: String? = null, handledStatus: GroupApplicationHandledStatus? = null, handledResult: GroupApplicationHandledResult? = null, type: GroupApplicationType, application: V2TIMGroupApplication)